Bio 12.1 and 2 Quiz

The structure of DNA is described as a ___ formed by two strands of nucleotides.

• double helix

• single spiral

• polymerase chain

• protein molecule

Which of these are not one of the nitrogenous bases in DNA nucleotides?

• adenine

• uracil

• guanine

• thymine

What did Hershey and Chase discover using radioactive labeling?

• Enzymes contain genetic material.

• DNA and proteins contain genetic material.

• Proteins contain genetic material.

• DNA contains genetic material.

What technique was used in taking the first images of DNA structure?

• X-ray diffraction

• radioactive labeling

• DNA tracking

• chromosomal photography

The enzyme ____ catalyzes the addition of nucleotides to the DNA strand.

• uracil

• adenine

• DNA polymerase

• segmental ligase

What are the small segments synthesized in the lagging strand of DNA?

• ligases

• adenines

• Okazaki fragments

• helixes

What type of bonds are broken during the unwinding stage of replication?

• hydrogen in bases

• hydrogen in polymerase

• sulfur in ligase

• carbon

What difference in eukaryotic and prokaryotic replication is shown here?

• Prokaryotes do not replicate their DNA.

• Prokaryotic replication occurs at multiple origins.

• Eukaryotic replication occurs in only one direction.

• Eukaryotic replication occurs at multiple origins.

What genetic process is shown here?

• RNA replication

• semiconservative replication

• parent strand mutation

• meiosis

Tags

NGSS.HS-LS3-2